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REPLACEMENT INSULATED GLASS UNIT Low E Glass: Low E glass (Low Emissivity) provides excellent performance in situations where temperature separation is desired. Low-E is used to help meet energy efficiency requ...
double glazed glass SIngle pane glass is a very poor insulator (R-value of around 1, RSI below 0.2), so single panes provide very little insulation. Glass coatings are frequently employed such as partially refl...